./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/elimination_max.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:09:00,991 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:09:00,993 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:09:01,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:09:01,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:09:01,038 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:09:01,040 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:09:01,042 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:09:01,044 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:09:01,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:09:01,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:09:01,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:09:01,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:09:01,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:09:01,053 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:09:01,055 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:09:01,056 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:09:01,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:09:01,061 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:09:01,064 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:09:01,066 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:09:01,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:09:01,070 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:09:01,071 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:09:01,075 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:09:01,076 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:09:01,076 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:09:01,077 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:09:01,078 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:09:01,079 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:09:01,080 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:09:01,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:09:01,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:09:01,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:09:01,085 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:09:01,085 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:09:01,086 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:09:01,087 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:09:01,087 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:09:01,088 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:09:01,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:09:01,090 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 09:09:01,124 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:09:01,124 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:09:01,125 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:09:01,125 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:09:01,126 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:09:01,127 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:09:01,127 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:09:01,127 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:09:01,128 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:09:01,128 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:09:01,128 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:09:01,128 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:09:01,129 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:09:01,129 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:09:01,129 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:09:01,129 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:09:01,129 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:09:01,130 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:09:01,130 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:09:01,130 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:09:01,130 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:09:01,131 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:09:01,131 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:09:01,131 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:09:01,132 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:09:01,132 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:09:01,132 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:09:01,132 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 09:09:01,133 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:09:01,133 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:09:01,133 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:09:01,133 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:09:01,134 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2021-11-09 09:09:01,439 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:09:01,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:09:01,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:09:01,465 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:09:01,466 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:09:01,467 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/verifythis/elimination_max.c [2021-11-09 09:09:01,539 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/data/06ad8283b/b8260f0eefad4d7e8182e983492c825d/FLAGa694b239f [2021-11-09 09:09:02,101 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:09:02,103 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/sv-benchmarks/c/verifythis/elimination_max.c [2021-11-09 09:09:02,114 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/data/06ad8283b/b8260f0eefad4d7e8182e983492c825d/FLAGa694b239f [2021-11-09 09:09:02,452 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/data/06ad8283b/b8260f0eefad4d7e8182e983492c825d [2021-11-09 09:09:02,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:09:02,456 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:09:02,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:02,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:09:02,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:09:02,469 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,470 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d51f4d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02, skipping insertion in model container [2021-11-09 09:09:02,470 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:09:02,492 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:09:02,667 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2021-11-09 09:09:02,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:02,702 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:09:02,715 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2021-11-09 09:09:02,722 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:02,736 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:09:02,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02 WrapperNode [2021-11-09 09:09:02,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:02,738 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:09:02,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:09:02,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:09:02,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,767 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,790 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:09:02,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:09:02,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:09:02,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:09:02,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,803 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,803 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,817 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:09:02,821 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:09:02,821 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:09:02,821 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:09:02,822 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (1/1) ... [2021-11-09 09:09:02,834 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:09:02,846 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:02,866 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:02,898 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:09:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:09:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:09:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 09:09:02,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:09:02,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:09:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 09:09:02,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:09:03,222 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:09:03,222 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-09 09:09:03,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:03 BoogieIcfgContainer [2021-11-09 09:09:03,224 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:09:03,228 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:09:03,228 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:09:03,256 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:09:03,256 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:09:02" (1/3) ... [2021-11-09 09:09:03,257 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fae7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:09:03, skipping insertion in model container [2021-11-09 09:09:03,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:02" (2/3) ... [2021-11-09 09:09:03,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fae7cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:09:03, skipping insertion in model container [2021-11-09 09:09:03,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:03" (3/3) ... [2021-11-09 09:09:03,259 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2021-11-09 09:09:03,265 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:09:03,265 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-09 09:09:03,332 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:09:03,340 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 09:09:03,340 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-09 09:09:03,363 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:03,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-09 09:09:03,369 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:03,369 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:03,370 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:09:03,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:03,375 INFO L85 PathProgramCache]: Analyzing trace with hash -489201995, now seen corresponding path program 1 times [2021-11-09 09:09:03,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:03,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187495143] [2021-11-09 09:09:03,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:03,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:03,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:03,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:03,540 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:03,540 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187495143] [2021-11-09 09:09:03,541 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187495143] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:03,541 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:03,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 09:09:03,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724560774] [2021-11-09 09:09:03,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:09:03,549 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:03,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:09:03,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:09:03,565 INFO L87 Difference]: Start difference. First operand has 24 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:03,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:03,580 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2021-11-09 09:09:03,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:09:03,582 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-09 09:09:03,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:03,590 INFO L225 Difference]: With dead ends: 45 [2021-11-09 09:09:03,590 INFO L226 Difference]: Without dead ends: 20 [2021-11-09 09:09:03,592 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:09:03,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-09 09:09:03,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-09 09:09:03,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:03,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-11-09 09:09:03,623 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2021-11-09 09:09:03,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:03,623 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-11-09 09:09:03,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:03,624 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-11-09 09:09:03,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-09 09:09:03,624 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:03,625 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:03,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 09:09:03,625 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:09:03,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:03,626 INFO L85 PathProgramCache]: Analyzing trace with hash 190915957, now seen corresponding path program 1 times [2021-11-09 09:09:03,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:09:03,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121141153] [2021-11-09 09:09:03,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:03,627 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:09:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:03,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:03,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:09:03,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121141153] [2021-11-09 09:09:03,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121141153] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:03,864 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:03,864 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-09 09:09:03,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659118208] [2021-11-09 09:09:03,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-09 09:09:03,866 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:09:03,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:09:03,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:09:03,868 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:03,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:03,971 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-11-09 09:09:03,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:09:03,972 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-09 09:09:03,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:03,973 INFO L225 Difference]: With dead ends: 20 [2021-11-09 09:09:03,973 INFO L226 Difference]: Without dead ends: 0 [2021-11-09 09:09:03,975 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-09 09:09:03,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-09 09:09:03,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-09 09:09:03,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:03,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-09 09:09:03,976 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-11-09 09:09:03,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:03,977 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:09:03,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.8333333333333333) internal successors, (11), 6 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:03,979 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-09 09:09:03,979 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-09 09:09:03,983 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:09:03,984 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:09:03,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 09:09:03,987 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-09 09:09:03,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:09:03,996 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:09:03,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:09:04,018 INFO L853 garLoopResultBuilder]: At program point L35-2(lines 25 37) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)) (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)))) [2021-11-09 09:09:04,019 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-11-09 09:09:04,019 INFO L857 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2021-11-09 09:09:04,020 INFO L857 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-11-09 09:09:04,023 INFO L857 garLoopResultBuilder]: For program point L11-3(line 11) no Hoare annotation was computed. [2021-11-09 09:09:04,024 INFO L857 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2021-11-09 09:09:04,024 INFO L857 garLoopResultBuilder]: For program point L11-4(line 11) no Hoare annotation was computed. [2021-11-09 09:09:04,024 INFO L857 garLoopResultBuilder]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2021-11-09 09:09:04,024 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-09 09:09:04,025 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-11-09 09:09:04,025 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-09 09:09:04,025 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-09 09:09:04,025 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-11-09 09:09:04,029 INFO L857 garLoopResultBuilder]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2021-11-09 09:09:04,030 INFO L853 garLoopResultBuilder]: At program point L45-3(lines 45 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)) (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)))) [2021-11-09 09:09:04,030 INFO L857 garLoopResultBuilder]: For program point L45-4(lines 45 47) no Hoare annotation was computed. [2021-11-09 09:09:04,031 INFO L857 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-11-09 09:09:04,031 INFO L857 garLoopResultBuilder]: For program point L8-2(line 8) no Hoare annotation was computed. [2021-11-09 09:09:04,031 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-09 09:09:04,032 INFO L857 garLoopResultBuilder]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2021-11-09 09:09:04,032 INFO L860 garLoopResultBuilder]: At program point L50(lines 16 51) the Hoare annotation is: true [2021-11-09 09:09:04,032 INFO L857 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2021-11-09 09:09:04,032 INFO L857 garLoopResultBuilder]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2021-11-09 09:09:04,032 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-11-09 09:09:04,036 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-09 09:09:04,037 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 09:09:04,047 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-09 09:09:04,055 INFO L168 Benchmark]: Toolchain (without parser) took 1592.91 ms. Allocated memory was 79.7 MB in the beginning and 107.0 MB in the end (delta: 27.3 MB). Free memory was 42.2 MB in the beginning and 77.7 MB in the end (delta: -35.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:04,056 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory is still 58.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:04,057 INFO L168 Benchmark]: CACSL2BoogieTranslator took 273.86 ms. Allocated memory is still 107.0 MB. Free memory was 86.2 MB in the beginning and 81.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:04,057 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.75 ms. Allocated memory is still 107.0 MB. Free memory was 81.2 MB in the beginning and 79.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:04,058 INFO L168 Benchmark]: Boogie Preprocessor took 29.25 ms. Allocated memory is still 107.0 MB. Free memory was 79.5 MB in the beginning and 78.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:04,058 INFO L168 Benchmark]: RCFGBuilder took 403.53 ms. Allocated memory is still 107.0 MB. Free memory was 78.2 MB in the beginning and 67.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:04,061 INFO L168 Benchmark]: TraceAbstraction took 820.51 ms. Allocated memory is still 107.0 MB. Free memory was 66.7 MB in the beginning and 77.7 MB in the end (delta: -11.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:04,068 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 79.7 MB. Free memory is still 58.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 273.86 ms. Allocated memory is still 107.0 MB. Free memory was 86.2 MB in the beginning and 81.2 MB in the end (delta: 5.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 51.75 ms. Allocated memory is still 107.0 MB. Free memory was 81.2 MB in the beginning and 79.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.25 ms. Allocated memory is still 107.0 MB. Free memory was 79.5 MB in the beginning and 78.2 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 403.53 ms. Allocated memory is still 107.0 MB. Free memory was 78.2 MB in the beginning and 67.3 MB in the end (delta: 10.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 820.51 ms. Allocated memory is still 107.0 MB. Free memory was 66.7 MB in the beginning and 77.7 MB in the end (delta: -11.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 39 SDslu, 11 SDs, 0 SdLazy, 13 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 31 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 82 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:240) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-09 09:09:04,121 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/elimination_max.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:09:06,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:09:06,572 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:09:06,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:09:06,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:09:06,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:09:06,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:09:06,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:09:06,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:09:06,635 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:09:06,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:09:06,639 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:09:06,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:09:06,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:09:06,646 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:09:06,649 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:09:06,656 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:09:06,657 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:09:06,659 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:09:06,666 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:09:06,673 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:09:06,675 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:09:06,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:09:06,679 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:09:06,683 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:09:06,685 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:09:06,686 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:09:06,688 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:09:06,689 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:09:06,690 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:09:06,691 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:09:06,692 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:09:06,694 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:09:06,695 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:09:06,700 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:09:06,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:09:06,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:09:06,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:09:06,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:09:06,704 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:09:06,705 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:09:06,711 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-11-09 09:09:06,765 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:09:06,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:09:06,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:09:06,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:09:06,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:09:06,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:09:06,770 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:09:06,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:09:06,771 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:09:06,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:09:06,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:09:06,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 09:09:06,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 09:09:06,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 09:09:06,774 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-09 09:09:06,774 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-09 09:09:06,774 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:09:06,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:09:06,775 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:09:06,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 09:09:06,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:09:06,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:09:06,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 09:09:06,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:09:06,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:09:06,776 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 09:09:06,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 09:09:06,777 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-09 09:09:06,777 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-09 09:09:06,777 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 09:09:06,778 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 09:09:06,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 09:09:06,778 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:09:06,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-09 09:09:06,779 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0bc7b1b837bfd7794f122f6504da8d835bb2276ae4afe0cc0d058d385032d49e [2021-11-09 09:09:07,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:09:07,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:09:07,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:09:07,222 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:09:07,222 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:09:07,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/verifythis/elimination_max.c [2021-11-09 09:09:07,293 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/data/5dce41751/29dcdbf4174e44268087cf9c0853fd68/FLAGd82985ffa [2021-11-09 09:09:07,826 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:09:07,827 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/sv-benchmarks/c/verifythis/elimination_max.c [2021-11-09 09:09:07,835 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/data/5dce41751/29dcdbf4174e44268087cf9c0853fd68/FLAGd82985ffa [2021-11-09 09:09:08,181 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/data/5dce41751/29dcdbf4174e44268087cf9c0853fd68 [2021-11-09 09:09:08,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:09:08,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:09:08,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:08,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:09:08,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:09:08,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16b649a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08, skipping insertion in model container [2021-11-09 09:09:08,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:09:08,214 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:09:08,376 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2021-11-09 09:09:08,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:08,405 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:09:08,418 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/sv-benchmarks/c/verifythis/elimination_max.c[485,498] [2021-11-09 09:09:08,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:09:08,473 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:09:08,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08 WrapperNode [2021-11-09 09:09:08,474 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:09:08,475 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:09:08,475 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:09:08,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:09:08,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,520 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:09:08,521 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:09:08,521 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:09:08,522 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:09:08,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,561 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:09:08,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:09:08,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:09:08,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:09:08,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (1/1) ... [2021-11-09 09:09:08,580 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 09:09:08,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:09:08,601 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 09:09:08,612 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 09:09:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-09 09:09:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:09:08,645 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 09:09:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-09 09:09:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:09:08,646 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:09:08,646 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 09:09:08,931 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:09:08,944 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-11-09 09:09:08,946 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:08 BoogieIcfgContainer [2021-11-09 09:09:08,946 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:09:08,948 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 09:09:08,948 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 09:09:08,951 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 09:09:08,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 09:09:08" (1/3) ... [2021-11-09 09:09:08,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7681b12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:09:08, skipping insertion in model container [2021-11-09 09:09:08,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:09:08" (2/3) ... [2021-11-09 09:09:08,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7681b12c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 09:09:08, skipping insertion in model container [2021-11-09 09:09:08,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:09:08" (3/3) ... [2021-11-09 09:09:08,955 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max.c [2021-11-09 09:09:08,960 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 09:09:08,976 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-09 09:09:09,048 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 09:09:09,058 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-09 09:09:09,059 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-11-09 09:09:09,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:09,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-09 09:09:09,096 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:09,097 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:09,098 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:09:09,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:09,113 INFO L85 PathProgramCache]: Analyzing trace with hash -489201995, now seen corresponding path program 1 times [2021-11-09 09:09:09,125 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:09:09,126 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1208755528] [2021-11-09 09:09:09,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:09,128 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:09:09,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:09:09,134 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:09:09,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-09 09:09:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:09,270 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-09 09:09:09,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:09,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:09,328 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:09:09,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:09,390 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:09:09,390 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1208755528] [2021-11-09 09:09:09,391 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1208755528] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:09,391 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:09,391 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-09 09:09:09,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603572087] [2021-11-09 09:09:09,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 09:09:09,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:09:09,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 09:09:09,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:09:09,422 INFO L87 Difference]: Start difference. First operand has 24 states, 21 states have (on average 1.5238095238095237) internal successors, (32), 23 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:09,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:09,439 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2021-11-09 09:09:09,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 09:09:09,441 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-09 09:09:09,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:09,448 INFO L225 Difference]: With dead ends: 45 [2021-11-09 09:09:09,449 INFO L226 Difference]: Without dead ends: 20 [2021-11-09 09:09:09,453 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 09:09:09,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-09 09:09:09,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-09 09:09:09,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:09,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2021-11-09 09:09:09,484 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 11 [2021-11-09 09:09:09,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:09,485 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2021-11-09 09:09:09,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:09,485 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2021-11-09 09:09:09,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-09 09:09:09,486 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 09:09:09,486 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:09:09,497 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-09 09:09:09,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:09:09,699 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 09:09:09,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:09:09,700 INFO L85 PathProgramCache]: Analyzing trace with hash 190915957, now seen corresponding path program 1 times [2021-11-09 09:09:09,701 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-09 09:09:09,701 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [310542209] [2021-11-09 09:09:09,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:09,702 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-09 09:09:09,702 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/mathsat [2021-11-09 09:09:09,703 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-09 09:09:09,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-09 09:09:09,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:09,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-09 09:09:09,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:10,614 INFO L354 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2021-11-09 09:09:10,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 32 [2021-11-09 09:09:10,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:10,670 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:09:10,727 INFO L354 Elim1Store]: treesize reduction 9, result has 43.8 percent of original size [2021-11-09 09:09:10,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 11 [2021-11-09 09:09:10,847 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-09 09:09:10,849 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [310542209] [2021-11-09 09:09:10,849 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: no int: (_ BitVec 32) [2021-11-09 09:09:10,850 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1415828724] [2021-11-09 09:09:10,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:09:10,850 INFO L168 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2021-11-09 09:09:10,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/cvc4 [2021-11-09 09:09:10,856 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2021-11-09 09:09:10,884 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2021-11-09 09:09:10,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:09:11,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 52 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-09 09:09:11,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-09 09:09:11,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 6 [2021-11-09 09:09:11,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 55 treesize of output 45 [2021-11-09 09:09:11,194 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:11,194 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-09 09:09:21,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:09:21,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1415828724] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-09 09:09:21,491 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:09:21,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2021-11-09 09:09:21,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601171713] [2021-11-09 09:09:21,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-09 09:09:21,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-09 09:09:21,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-09 09:09:21,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=226, Unknown=5, NotChecked=0, Total=272 [2021-11-09 09:09:21,495 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:25,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:09:25,649 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2021-11-09 09:09:25,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 09:09:25,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2021-11-09 09:09:25,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 09:09:25,650 INFO L225 Difference]: With dead ends: 20 [2021-11-09 09:09:25,650 INFO L226 Difference]: Without dead ends: 0 [2021-11-09 09:09:25,652 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 14.6s TimeCoverageRelationStatistics Valid=56, Invalid=279, Unknown=7, NotChecked=0, Total=342 [2021-11-09 09:09:25,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-09 09:09:25,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-09 09:09:25,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:25,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-09 09:09:25,653 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2021-11-09 09:09:25,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 09:09:25,653 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-09 09:09:25,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.25) internal successors, (18), 8 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:09:25,653 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-09 09:09:25,653 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-09 09:09:25,656 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:09:25,656 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 09:09:25,674 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2021-11-09 09:09:25,867 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-09 09:09:26,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/mathsat -unsat_core_generation=3 [2021-11-09 09:09:26,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-09 09:09:26,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:09:26,101 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:09:26,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-09 09:09:26,129 INFO L853 garLoopResultBuilder]: At program point L35-2(lines 25 37) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)))) [2021-11-09 09:09:26,130 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-11-09 09:09:26,131 INFO L857 garLoopResultBuilder]: For program point L11(line 11) no Hoare annotation was computed. [2021-11-09 09:09:26,131 INFO L857 garLoopResultBuilder]: For program point L11-1(line 11) no Hoare annotation was computed. [2021-11-09 09:09:26,131 INFO L857 garLoopResultBuilder]: For program point L11-3(line 11) no Hoare annotation was computed. [2021-11-09 09:09:26,131 INFO L857 garLoopResultBuilder]: For program point L7(lines 7 9) no Hoare annotation was computed. [2021-11-09 09:09:26,132 INFO L857 garLoopResultBuilder]: For program point L11-4(line 11) no Hoare annotation was computed. [2021-11-09 09:09:26,132 INFO L857 garLoopResultBuilder]: For program point L7-1(lines 7 9) no Hoare annotation was computed. [2021-11-09 09:09:26,132 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-09 09:09:26,132 INFO L857 garLoopResultBuilder]: For program point L-1-1(line -1) no Hoare annotation was computed. [2021-11-09 09:09:26,132 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-09 09:09:26,133 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-09 09:09:26,133 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) no Hoare annotation was computed. [2021-11-09 09:09:26,133 INFO L857 garLoopResultBuilder]: For program point L45-2(lines 45 47) no Hoare annotation was computed. [2021-11-09 09:09:26,133 INFO L853 garLoopResultBuilder]: At program point L45-3(lines 45 47) the Hoare annotation is: (let ((.cse0 ((as const (Array (_ BitVec 32) (_ BitVec 32))) (_ bv0 32)))) (and (= .cse0 (select |#memory_int| ULTIMATE.start_main_~a~0.base)) (= .cse0 (select |#memory_int| |ULTIMATE.start_main_#t~malloc9.base|)) (= ULTIMATE.start___VERIFIER_assert_~cond (_ bv1 32)))) [2021-11-09 09:09:26,134 INFO L857 garLoopResultBuilder]: For program point L45-4(lines 45 47) no Hoare annotation was computed. [2021-11-09 09:09:26,134 INFO L857 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2021-11-09 09:09:26,134 INFO L857 garLoopResultBuilder]: For program point L8-2(line 8) no Hoare annotation was computed. [2021-11-09 09:09:26,135 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-09 09:09:26,135 INFO L857 garLoopResultBuilder]: For program point L25-2(lines 25 37) no Hoare annotation was computed. [2021-11-09 09:09:26,135 INFO L860 garLoopResultBuilder]: At program point L50(lines 16 51) the Hoare annotation is: true [2021-11-09 09:09:26,135 INFO L857 garLoopResultBuilder]: For program point L10(lines 10 12) no Hoare annotation was computed. [2021-11-09 09:09:26,136 INFO L857 garLoopResultBuilder]: For program point L10-1(lines 10 12) no Hoare annotation was computed. [2021-11-09 09:09:26,136 INFO L857 garLoopResultBuilder]: For program point L35(lines 35 36) no Hoare annotation was computed. [2021-11-09 09:09:26,139 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-09 09:09:26,143 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 09:09:26,148 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.InvariantResult.getLongDescription(InvariantResult.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createInvariantResults(TraceAbstractionStarter.java:453) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-09 09:09:26,153 INFO L168 Benchmark]: Toolchain (without parser) took 17967.05 ms. Allocated memory was 52.4 MB in the beginning and 96.5 MB in the end (delta: 44.0 MB). Free memory was 29.0 MB in the beginning and 73.9 MB in the end (delta: -44.9 MB). Peak memory consumption was 31.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:26,154 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 33.8 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:26,158 INFO L168 Benchmark]: CACSL2BoogieTranslator took 287.67 ms. Allocated memory was 52.4 MB in the beginning and 79.7 MB in the end (delta: 27.3 MB). Free memory was 28.8 MB in the beginning and 63.1 MB in the end (delta: -34.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:26,159 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.61 ms. Allocated memory is still 79.7 MB. Free memory was 63.1 MB in the beginning and 61.2 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:26,160 INFO L168 Benchmark]: Boogie Preprocessor took 43.09 ms. Allocated memory is still 79.7 MB. Free memory was 61.2 MB in the beginning and 60.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:09:26,161 INFO L168 Benchmark]: RCFGBuilder took 381.18 ms. Allocated memory is still 79.7 MB. Free memory was 60.0 MB in the beginning and 48.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:26,162 INFO L168 Benchmark]: TraceAbstraction took 17203.42 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 47.8 MB in the beginning and 73.9 MB in the end (delta: -26.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:09:26,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 52.4 MB. Free memory was 33.8 MB in the beginning and 33.8 MB in the end (delta: 62.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 287.67 ms. Allocated memory was 52.4 MB in the beginning and 79.7 MB in the end (delta: 27.3 MB). Free memory was 28.8 MB in the beginning and 63.1 MB in the end (delta: -34.3 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 45.61 ms. Allocated memory is still 79.7 MB. Free memory was 63.1 MB in the beginning and 61.2 MB in the end (delta: 1.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.09 ms. Allocated memory is still 79.7 MB. Free memory was 61.2 MB in the beginning and 60.0 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 381.18 ms. Allocated memory is still 79.7 MB. Free memory was 60.0 MB in the beginning and 48.0 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17203.42 ms. Allocated memory was 79.7 MB in the beginning and 96.5 MB in the end (delta: 16.8 MB). Free memory was 47.8 MB in the beginning and 73.9 MB in the end (delta: -26.1 MB). Peak memory consumption was 23.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 17.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 38 SDtfs, 41 SDslu, 12 SDs, 0 SdLazy, 15 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 14.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 30 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 50 ConstructedInterpolants, 7 QuantifiedInterpolants, 308 SizeOfPredicates, 28 NumberOfNonLiveVariables, 156 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:211) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-09 09:09:26,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_202f5e9f-70ae-4ae9-867b-23f09e648c7e/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: translation of (const (_ BitVec 32) (Array (_ BitVec 32) (_ BitVec 32))) not yet implemented, please contact Matthias